JVM JIT for Dummies

Most Java developers never get past -Xmx, -classpath, and -jar when learning about the flags that JVMs offer. If you’re an OpenJDK user, you know -server and -client too. But if you’re a performance nut, you crave more.

This session walks through several lower-level OpenJDK flags you can use to monitor what code the JVM compiles into native code, what decisions it makes along the way, and even what that native assembly looks like. You’ll learn how JVM bytecode makes its way through Oracle’s HotSpot and how you can write code that JVMs will optimize well.

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